GB2012271A - Catalytic isomerisation of o-cresol - Google Patents

Catalytic isomerisation of o-cresol

Info

Publication number
GB2012271A
GB2012271A GB7902292A GB7902292A GB2012271A GB 2012271 A GB2012271 A GB 2012271A GB 7902292 A GB7902292 A GB 7902292A GB 7902292 A GB7902292 A GB 7902292A GB 2012271 A GB2012271 A GB 2012271A
Authority
GB
United Kingdom
Prior art keywords
cresol
catalytic isomerisation
isomerisation
catalytic
al2o3
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB7902292A
Other versions
GB2012271B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Union Rheinische Braunkohlen Kraftstoff AG
Original Assignee
Union Rheinische Braunkohlen Kraftstoff AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE2804537A external-priority patent/DE2804537C2/en
Application filed by Union Rheinische Braunkohlen Kraftstoff AG filed Critical Union Rheinische Braunkohlen Kraftstoff AG
Publication of GB2012271A publication Critical patent/GB2012271A/en
Application granted granted Critical
Publication of GB2012271B publication Critical patent/GB2012271B/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A process for the catalytic isomerisation of o-cresol comprises reacting o-cresol at a temperature from 350 DEG C to 450 DEG C optionally under pressure in the presence of a catalyst comprising an acidic crystalline aluminium silicate zeolite of the ZSM group with a composition in the molar ratio 1+/-0.4 M2O/n:Al2O3:5-100 SiO2: 0.60 H2O where M is an n-valent cation. The process avoids substantial disproportionation which is a characteristic of known processes, and permits a selectivity of more than 95% to be obtained.
GB7902292A 1978-01-03 1979-01-22 Catalytic isomerisation process Expired GB2012271B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7800592 1978-01-03
DE2804537A DE2804537C2 (en) 1978-02-03 1978-02-03 Process for the catalytic isomerization of o-cresol

Publications (2)

Publication Number Publication Date
GB2012271A true GB2012271A (en) 1979-07-25
GB2012271B GB2012271B (en) 1982-07-07

Family

ID=25773754

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7902292A Expired GB2012271B (en) 1978-01-03 1979-01-22 Catalytic isomerisation process

Country Status (1)

Country Link
GB (1) GB2012271B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503269A (en) * 1983-09-21 1985-03-05 Uop Inc. Isomerization of cresols
EP0144760A2 (en) * 1983-11-12 1985-06-19 Hoechst Aktiengesellschaft Isomerization process of mono or dichloro-phenols
EP0416279A1 (en) * 1989-08-09 1991-03-13 BASF Aktiengesellschaft Method for the production of mixtures of cresol isomers with a mole ratio of para- to meta-cresol of at least 0.6:1 up to 10:1
US5053558A (en) * 1988-10-17 1991-10-01 Uop Process for the isomerization of cresols
EP1028102A1 (en) * 1999-02-02 2000-08-16 Akzo Nobel N.V. Isomerization of alkyl phenol with a solid acid catalyst
US6232485B1 (en) 1997-10-29 2001-05-15 Great Lakes Chemical Corporation Production of phosphate esters
CN113351243A (en) * 2021-06-21 2021-09-07 山西大学 Catalyst for producing m-cresol from o-cresol by isomerization and preparation method thereof
CN115445653A (en) * 2022-09-01 2022-12-09 宁夏派可威生物科技有限公司 Preparation process of cresol isomerization catalyst

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503269A (en) * 1983-09-21 1985-03-05 Uop Inc. Isomerization of cresols
EP0191120A1 (en) * 1983-09-21 1986-08-20 Uop Inc. Isomerization of Cresols
EP0144760A2 (en) * 1983-11-12 1985-06-19 Hoechst Aktiengesellschaft Isomerization process of mono or dichloro-phenols
EP0144760A3 (en) * 1983-11-12 1986-12-30 Hoechst Aktiengesellschaft Isomerization process of mono or dichloro-phenols
US5053558A (en) * 1988-10-17 1991-10-01 Uop Process for the isomerization of cresols
EP0416279A1 (en) * 1989-08-09 1991-03-13 BASF Aktiengesellschaft Method for the production of mixtures of cresol isomers with a mole ratio of para- to meta-cresol of at least 0.6:1 up to 10:1
US5015785A (en) * 1989-08-09 1991-05-14 Basf Aktiengesellschaft Preparation of mixtures of isomeric cresols with a molar ratio of para- to meta-cresol of at least 0.6:1 to 10:1
US6232485B1 (en) 1997-10-29 2001-05-15 Great Lakes Chemical Corporation Production of phosphate esters
EP1028102A1 (en) * 1999-02-02 2000-08-16 Akzo Nobel N.V. Isomerization of alkyl phenol with a solid acid catalyst
CN113351243A (en) * 2021-06-21 2021-09-07 山西大学 Catalyst for producing m-cresol from o-cresol by isomerization and preparation method thereof
CN115445653A (en) * 2022-09-01 2022-12-09 宁夏派可威生物科技有限公司 Preparation process of cresol isomerization catalyst

Also Published As

Publication number Publication date
GB2012271B (en) 1982-07-07

Similar Documents

Publication Publication Date Title
EP0011900B1 (en) Process for the conversion of dimethyl ether
ES471957A1 (en) A process for isomerizing xylenes.
PT79788A (en) Process to produce an alcaline metal crystaline silicate
AU541868B2 (en) Xylene isomerisation
PT69798A (en) Process for preparing aluminium-modified silica useful as a catalyst for the alkylation of hydrocarbons
GB2012271A (en) Catalytic isomerisation of o-cresol
IT1152998B (en) PROCEDURE FOR THE PREPARATION OF ALUMINUM-SILICATE POROUS CRYSTALS
EP0171822B1 (en) Process for the production of pseudocumene or durene
GB2101110B (en) Synthesis of zsm-type zeolites
CA1202943A (en) Treatment of zeolites
DE3373806D1 (en) Process for the treatment of acid waste water containing aluminium and iron
EP0113473B1 (en) Novel zeolite catalyst and process for preparing same
ES537517A0 (en) A PROCEDURE FOR PREPARING A CRYSTALLINE ZEOLITE, WHICH CONTAINS POTASSIUM
FR1264290A (en) Process for the catalytic preparation of ethylene glycol
US4772456A (en) Process for preparing crystalline silicas
ES489507A0 (en) CATALYTIC PROCEDURE FOR THE OBTAINING OF C2-C5 OLEFINS.
FR2228721A1 (en) ZSM-21 synthetic crystalline aluminosilicate zeolites - for use as hydrocarbon conversion catalysts
JPH07247114A (en) Production of zeolite beta
JPS5777023A (en) Manufacture of crystalline aluminosilicate
Kurosaki et al. Low temperature isomerization of paraffins over alumina treated with CF3Cl
DK37486D0 (en) CRYSTALLIC ALUMINOSILICATE AND PROCEDURES FOR PREPARING THEREOF
JPS57200318A (en) Conversion of aromatic hydrocarbon
龙英才 THE SYNTHESIS AND CHARACTERIZATION OF A NEW STRUCTURE OF ZEOLITE CF-2
Ustemirov et al. Preparation of Aluminum Sulfate From an Intermediate Product of Alumina Production
YASHIMA et al. Selective alkylation of 1, 2, 4-trimethylbenzene with methanol on modified HZSM-5 type zeolite catalysts

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee